react-router-domでrouterが動かない場合はrouter以下をdivで囲む - Qiita

<Router> <ul> <li> <Link to="/">Home</Link> </li> <li> <Link to="/about">About</Link> </li> <li> <Link to="/dashboard">Dashboard</Link> </li> </ul> <hr /> {/* A <Switch> looks through all its children <Route> elements and renders the first one whose path matches the current URL. Use a <Switch> any time you have multiple routes, but you want only one of them to render at a time */} <Switch> <Route